# sidwillite

> English word · Noun

## Definitions
1. A monoclinic-prismatic mineral containing hydrogen, molybdenum, and oxygen.

## Etymology
Named after American mineralogist Sidney Arthur Williams (1933–2006), who played a prolific part in western United States mineralogy, + -ite.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/sidwillite